We could really tell that Nathan was really interacting with Sidney... trying to make him laugh, watching his reactions. It warmed both Alex and my heart.
And then... from the "unfortunate timings" department...
Nathan was done brushing his teeth and began saying goodnight to all of us. He gave his Maman a kiss and we asked him if he wanted to give Sidney a kiss on the head. He strained his head around to give Sidney a bisous on the mouth, and right at that momeny Sidney vomited.
Nathan was a little perplexed, but took it in stride.